Average data for 10 years
1 September
Monday
+15°
+8°
2 September
Tuesday
+15°
+8°
3 September
Wednesday
+15°
+8°
4 September
Thursday
+15°
+8°
5 September
Friday
+15°
+8°
6 September
Saturday
+14°
+7°
7 September
Sunday
+15°
+8°
8 September
Monday
+15°
+8°
9 September
Tuesday
+14°
+7°
10 September
Wednesday
+13°
+7°
11 September
Thursday
+13°
+7°
12 September
Friday
+12°
+6°
13 September
Saturday
+13°
+6°
14 September
Sunday
+12°
+5°
15 September
Monday
+12°
+6°
16 September
Tuesday
+11°
+5°
17 September
Wednesday
+10°
+5°
18 September
Thursday
+10°
+5°
19 September
Friday
+10°
+5°
20 September
Saturday
+10°
+5°
21 September
Sunday
+10°
+4°
22 September
Monday
+11°
+5°
23 September
Tuesday
+12°
+6°
24 September
Wednesday
+10°
+5°
25 September
Thursday
+9°
+4°
26 September
Friday
+9°
+3°
27 September
Saturday
+8°
+4°
28 September
Sunday
+8°
+3°
29 September
Monday
+7°
+2°
30 September
Tuesday
+7°
+2°
Cities with similar weather in September
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Sweden
Stockholm
Kyrgyzstan
Cholpon-Ata
September in Yellowknife is the windiest month of the year. In September, the weather in Yellowknife is typically warm. Average daily high temperature in September is about 12 degrees above zero. On average, Yellowknife has 9 rainy, 8 cloudy, 7 partly cloudy, and 6 sunny days in September. The rains are usually light.